Center for Teaching, Learning and Technology
Illinois State University
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The Scores and Standard Output Results

If you chose "Scores only" or "Standard output," then we create two printouts of scores: one alphabetized by last name and another sorted by identification number. The percentage correct, percentile rank, T-scores, mean, and standard deviation are also printed on the lists of scores.

List of Scores, sorted by name

A T-score is a standardized score that allows you to compare test scores for tests with different scales and for different classes. A T-score assumes that the test mean is 50 and the standard deviation is 10. The T-score provides an index of the distance a particular score lies from the average.

The electronic version of this report is very similar.

Excel version of Scores

The Frequency Distribution Table

Choosing standard output means you will also receive a frequency distribution table. The frequency distribution gives you a table showing the frequency distribution of the test scores.

Frequency Distribution

Each score is given a percentile rank that indicates the percentage of students who fall below this point on the score distribution. In cases where more than one student or where no student obtains a particular score, the distance between scores is taken into account.

The Histogram

The standard output report also includes a histogram, a graphical representation of a frequency distribution. The weighted scores are along the x-axis and the frequency is shown on the y-axis (how many students received each score on the test).

In some cases student scores will approximate the shape of a normal distribution, or a bell curve. For a variety of reasons (including small class size) this doesn't always happen. A histogram, therefore, is more likely—but not guaranteed—to be bell shaped for classes in which there are 30 or more students.

Histogram

2016-08-17T10:24:49.191-05:00 2016